Anti-haze window screening filtering effect testing device and testing method

Abstract

The invention discloses an anti-haze window screening filtering effect testing device and a testing method. A relatively large end of a diffusion part is connected with an opening of a tubular body; arelatively end of the diffusion part is an air inlet hole; a clamping part is arranged in the middle of the tubular body; the clamping part is used for clamping and fixing a testing sample; the innercavity of the tubular body is partitioned into an upstream space and a downstream space far away from the opening by the testing sample; a negative pressure unit is arranged at one end far away fromthe diffusion part, of the tubular body; the negative pressure unit is communicated with the inner cavity of the tubular body through a first flowmeter; a pressure gauge for detecting air pressure ontwo sides of the testing sample is arranged inside the tubular body; one end of the pressure gauge is connected with the upstream space; the other end of the pressure gauge is connected with the downstream space. The testing device has the advantage of being simple in structure, and as different functional units are controlled and data are read by using a computer unit, the testing process can besimple and convenient. By adopting the testing device, three testing modes of mixing solid aerosol, liquid aerosol and solid-liquid aerosol can be achieved, and the mixing ratio of solid and liquid aerosol can be controlled.

Description

technical field

[0001] The invention relates to a testing device for a filter material, in particular to a testing device for the filtering effect of an anti-smog window screen.

[0002] Simultaneously, the present invention also relates to a method for testing the filter material, in particular to a method for testing the filtering effect of the anti-smog window screen. Background technique

[0003] With the continuous development of my country's industrialization level, industrial smoke and automobile exhaust have caused serious pollution to the atmospheric environment, and people's awareness of environmental protection has become stronger and stronger. Hazy weather and PM2.5 have become hot issues that people pay attention to. PM2.5 can enter the alveoli through the respiratory tract and seriously endanger human health. In smoggy weather, people dare not open the windows for ventilation. Once the windows are opened, harmful substances such as fine particles can easily en...

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